About 500 passengers aboard three Amtrak trains were stranded overnight in a remote part of northern Illinois because of blowing and drifting snow, Amtrak officials said today. The trains were halted late Monday near Mendota, about 80 miles west of Chicago. The passengers were aboard the Southwest Chief from Los Angeles, the Illinois Zephyr from Quincy, Ill., and the California Zephyr from the San Francisco Bay area, Amtrak spokesman Marc Magliari told The Associated Press. The trains became stuck around 4:15 p.m. ET Monday after they hit a 12-foot snow drift that paralyzed the engines, passenger Bryan Plummer told ABC...